Dumping-body for trucks



C. J. YOUNG.

DUMPING BODY FOR TRUCKS. APPLICATION FILED APR. 15. 1919.

Patented J an. 27, 1920.

2 SHEETSSHEET I.

C. J. YOUNG.

DUMPING BODY FOR TRUCKS.

APPLICATION FILED APR. 15. 1919.

1,329,101. Patented Ja11.27,1920.

2 SHEETS-SHEET 2- Emma" UNITED STATES PATENT OFFICE.

CARL J. YOUNG, OF SEATTLE, WASHINGTON.

DUMPINGr-BODY FOR TRUCKS.

Application filed April 15, 1919.

To all whom it may concern:

Be it unown that I, CARL J. YOUNG, a citizen of the United States, andresident of the city of Seattle, county of King, State of Vfashington,have invented certain new and useful Improvements in Dumping-Bodies forTrucks, of which the following is a specification.

My invention relates to vehicle bodies, and pertains particularly to theconstruction of the bottom of the vehicle bed so that it may be dumpedof its contents. My invention consists of the construction of thebottom. of the vehicle bed whereby it may be readily dumped whendesired.

The particular features of this invention upon which I wish to obtainLetters Patent will be hereinafter described and then particularlypointed out by the claim which terminates this specification.

The drawings accompanying herewith represent my invention embodied inthe form of construction which I now prefer to use.

Figure 1 is a side elevation and partial section of a vehicle bodyhaving my invention embodied therein.

Fig. 2 is a top plan view of the same.

Fig. 3 is a cross sectional elevation of the vehicle bed.

Fig. 4 is a longitudinal sectional elevation showing a short section ofthe vehicle bed and the dumping mechanism.

The vehicle body, as herein illustrated, is supposed to be constructedof metal plates. It is of course obvious that wood construction might beemployed, although for hauling of heavy materials, such as thisinvention is particularly designed for, a metallic construction is farpreferable. The main portion of the vehicle body may be of usual orstandard rectangular construction. The bottom of the body is, however,composed of a series of A-shaped beams extending transversely thereof,and with their bases separated from the bases of adjoining beams so asto leave wide slots or openings through which the contents of the bedmay be discharged.

These A-shaped beams 1 are conveniently formed by bending a metal plateupon itself so as to secure the A or inverted-V shape with the apexupward. The ends of the sides of these beams are preferably flanged up,so as to form flanges 12 which are secured to the sides 2 of the body byriveting,

Specification of Letters Patent.

Patented Jan. 27, 1920.

Serial No. 290,196.

bolting or in any other suitable manner. These beams form very rigidconnection between the sides of the bed and also as supports for theload. The successive beams are spaced apart so as to form ample width ofopenings through which to discharge the contents.

I prefer to make these beams so that one side is somewhat longer thanthe other and extends to a slightly lower level. As illustrated, theside 11 is somewhat longer than the side 10. The gap between the basesof adjacent beams is controlled in its opening by means of cylindricalsegment plates 3. These plates are mounted upon heads 30 which aresecured to shafts 31 which extend across the body and are journaled inthe sides :2. The segment plates 3 may be secured so that their centerof curvature coincides with the center of the shaft 31 to which they aresecured, and they should be so placed that their outer convex surfacecomes in close engagement with the lower edges of the A-beams 1. Iprefer, however, that the center of curvature of the segment plates 3 belocated a little to one side of the axis of the shaft 31.

In Fig. 4 the center of curvature of the segment plate 3 is indicated bythe radial broken line 3:2, and is located substantially at theperiphery of the shaft 31. When this arrangement is made, as the plateis swung into the position to discharge the contents, which position isillustrated by the dotted lines in Fig. 4, the outer surface of theplate 3 tends to draw away from the load above it. It, therefore, makesit open somewhat easier than if the center of curvature of the plate 3was concentric with the shaft 31. While I prefer this form ofconstruction, yet I do not consider that this is entirely essential. Insome cases the other principle of pivoting will suffice.

Each of the shafts 31 is provided upon one end and Outside of the bed,with a crank arm 4. These crank arms are connected in series by a link40, so that a number of them may be operated at one time. The segmentplates 3 at one end of the bed may be connected by a different set oflinks and crank arms from those at the other end, so that the materialin one end of the body may be dumped without affecting the material inthe other end of the body. I have shown such an arrangement in Figs. 1and 2. In this case I have shown a link 41 which is connected with thefirst three plates of the for- Ward compartment, While the link 40 isconnected with the corresponding plates of a rear compartment. Theselinks a and 411 are connected with levers 4-2, or other means locatedconvenient to the driver, so that they may be controlled from thedrivers seat. A segment bar, as 43, is provided, by means of which thesame may be set in any adjusted position.

The space within the vehicle bed may be divided up into compartmentsconveniently by providing the sides 2 with guide bars 20, separated soas to permit the insertion between them of removable planks 21. Theseare located so as to aline with the apex of one of the A-beams 1. Asmany of these as desired may be provided, thus making it possible todump the load in sections, either at the same or at different places.

The type of construction which employs the deep sides to the bed and theconnecting A-beams rigidly secured to these sides, forms a very rigidstructure which will carry heavy loads without deflection, and one whichis strong to resist injury under any ordinary kind of use. To preventmovement of the segment plates 3 too far to the rear, or toward theposition of closing, so as to thus prevent a possible opening at theopposite side, I provide stop plates 5 secured to the sides of the bedin position to be contacted by the side of the heads and thus to preventthe possibility of the plates moving in this direction farther thanenough to well close the opening. It is believed that the operation ofthe device is apparent and that further detailed description of itsoperation will be unnecessary.

hat I claim as my invention is:

A dumping vehicle body comprising side and end Walls and a bottomcomposed of spaced inverted V-shaped beams fixed at their ends to theside walls, transverse shafts mounted revolubly in the side wallsbeneath each of the openings between the said beams, segmental platesfixedly mounted on the shafts; the centers of curvature of the saidplates being offset from the center of the shaft toward the side thatthe plates open a. stop fixed to a side wall to limit closing movementof theplates, crank arms secured to each shaft and a. bar connectingsaid cranks whereby they may be moved to actuate the plates to and fromclosed position.

Signed at Seattle, Washington, this 26th day of March, 1919.

CARL J. YOUNG.

